• Participants: 263 Grade 4 students and 7 Mathematics teachers participated. After excluding students absent during key parts of the study, data from 223 students were analyzed.
• Curriculum Focus: Evaluated student performance on "Whole Numbers", covering three chapters: Numbers to 100 000, Factors and Multiples, and Multiplication and Division of Whole Numbers (Chapters 1–3).
• Assessment Structure: Developed by Dr. Cynthia Seto using identical 20-mark Pre-tests and Post-tests.
o Note: Due to school scheduling constraints, teachers had taught portions of Numbers to 100 000 prior to the Pre-test, but the remaining two chapters were not taught until after the baseline test.
• 3-Month Interval: A three-month gap was enforced between the Pre-test and Post-test to eliminate the recency effect and measure genuine long-term concept mastery.
• Qualitative Data: A recorded Zoom focus group discussion was held with the 7 mathematics teachers to gather qualitative insights on classroom implementation.